Source file src/math/signbit.go

Documentation: math

		 1  // Copyright 2010 The Go Authors. All rights reserved.
		 2  // Use of this source code is governed by a BSD-style
		 3  // license that can be found in the LICENSE file.
		 4  
		 5  package math
		 6  
		 7  // Signbit reports whether x is negative or negative zero.
		 8  func Signbit(x float64) bool {
		 9  	return Float64bits(x)&(1<<63) != 0
		10  }
		11  

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